Improvement in steam-boilers



UNITED STATES HENRY GERNER, OF NEW YORK, N. Y.

IMPROVEMENT IN STEAM-BOILERYS.

Specification forming part of Letters Patent No. 48,805, dated July 18,1865.

To all whom 'it may concern:

Be it known that I, HENRY GERNER, of No. 20 Bleeker street, of the city,county, and State of New York, have invented a new and ImprovedSteam-Boiler; and I do hereby declare that the following is a full,clear,and exact description thereof, which will enable others skilled inthe art to make and use the same, reference being had to the accompanyingdrawings, forming a part ot this speciteution, in whieh- Figure lrepresents a longitudinal vertical section of this invention. Fig. 2 isa transverse vertical section of the same. Fig. 3 is a partial plan ortop view ofthe same.

Similar letters of reference indicate like parts.

This invention consists in arranging the steam dome or reservoir of asteam-boiler in the interior of its shell and of the water-space in sucha manner that the shell of the boiler eanbe filled up with water nearlyto the top, and the fire made to strike the same round its entirecircumference; and, furthermore, the steam-reservoir of the boiler issurrounded by the heated water, and the radiation of heat from the sameand the condensation and loss of steam consequent upon such radiationare avoided.

A represents a steam-boiler, made of sheetiron or any other suitablematerial in the usual form and manner.

In the drawings a plain cylinder-boiler is represented; but my inventionis applicable to flue or marine boilers and to tubular or locomotiveboilers with the same advantage as to a plain cylinder-boiler.

The steam space or reservoir B of my boiler, instead of being placed ontop of the boiler or above the water-s pace thereof, is placed in theinterior of the same, as clearly shown in the drawings, and when theboiler is tilled with water to its proper level said steam-reservoir iscompletely immersed in and surrounded by the water.

In a plain cylinder-boiler the reservoir B can be made round, as shown,but in tubular or Hue boilers it must be made at, or in any otherconvenient formv or shape to accomlnodate itself to the space in theinterior ot' the boiler above or between the ues. Said reservoir issuspended from the top of the boiler A by means of braces a, and a tube,b, extends from the same up in the dome c, so that the steam rising fromthe water in the boiler can find access to the interior of thesteam-reservoir. rIhe dome c is closed steam-tight, anda pipe, d, passesfrom the interior of the reservoir B through the top of said dome toconvey the steam to the engine or other place where it is to oe used. Bythis arrangement the steam-reservoir is completely surrounded by theheated body of water in the boiler, and all radiation of heat from theoutside surface ofthe steam-reservoir is avoided. The steam remains dryand free from condensation; and, further more, the boiler A can befilled with water nearly to its top, and the fire can be made to strikeits sides nearly all round, so that a larger heating-surfaceis obtainedthan in boilers of the ordinary construction, the upper portion ot'which is occupied by steam and can not be exposed to the direct actionof the tire.

I claim as new and desire to secure by Letters Patent- The combinationand arrangement of' the cylindrical steam-reservoir B, located withinthe boiler A, the tube b, and eduction steampipe d., substantially iuthe manner aud for the objects specified.

HENRY GERNER.

Vitnesses:

C. L. TOPLIEF, I. M. COVINGTON.

